GE Healthcare
Senographe DS
Revision 1
Service Information and Procedures Class A 2385072-16-8EN
Job Card CAL A050 - Compression Thickness Calibration
Page no. 1721
Chapter 9
JC-CAL-A-050.fm
Job Card CAL A050 - Compression Thickness Calibration
Chapter 9
1
SUPPLIES
None
2
TOOLS
3
REQUIRED EFFORT
Personnel: 1 Field Engineer
Time: 10 minutes
4
SAFETY PRECAUTIONS
5
PREREQUISITES
•
Remove the Compression Paddle
•
Remove the Bucky
6
COMPRESSION THICKNESS CALIBRATION
The purpose of breast thickness calibration is to calibrate the absolute breast thickness measurement
which is given by a linear potentiometer linked to the compression carriage. This is done by defining two
points in the range of travel of the compression carriage.
6-1
Paddle Holder Travel Limits
1. Select the
Compression Thickness Calibration
on the AWS Screen:
Service Desktop/Calibration/
Positioner/Breast Thickness
and press
START
. The Gantry Readout displays the procedure to fol-
low.
2. Press the footswitch continuously (do not release the compression pedal until the movement stops
automatically) to reach the lowest mechanical position of the compression. Press the collimator FOV
size button (behind the tube head) to register this position.
3. Press the footswitch continuously to reach the upper position and register this position with the FOV
size button.
4. If an error message appears, follow the instructions of the message.
5. Save the calibration results by clicking the
Save
button on the AWS screen.
6. If you wish to exit the calibration without saving the results (leaving the system un-calibrated or using
the previous settings), click the
Cancel
button on the AWS screen.
7. Exit the Calibration Mode.
